Journal article 1087 views
Constrained flavor breaking
Thomas Appelquist,
Yang Bai,
Maurizio Piai 
Physical Review D, Volume: 91, Issue: 9
Swansea University Author:
Maurizio Piai
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DOI (Published version): 10.1103/PhysRevD.91.093009
Abstract
We explore predictive flavor models based on subgroups of the standard-model SU(3)^5 flavor symmetry. Restricting to products of SU(3), we find that a global SU(3)^3 flavor symmetry, broken only by two Yukawa spurions, leads to a relation among down-type quark, up-type quark and charged-lepton Yukaw...
| Published in: | Physical Review D |
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| Published: |
2015
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| Online Access: |
http://arxiv.org/abs/1503.07450 |
| URI: | https://cronfa.swan.ac.uk/Record/cronfa20998 |
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| Abstract: |
We explore predictive flavor models based on subgroups of the standard-model SU(3)^5 flavor symmetry. Restricting to products of SU(3), we find that a global SU(3)^3 flavor symmetry, broken only by two Yukawa spurions, leads to a relation among down-type quark, up-type quark and charged-lepton Yukawa matrices: Yd∝YuYe^+. As a result, the charged-lepton mass ratios are expressed in terms of quark mass ratios and mixing angles. Large leptonic mixing angles appear to be natural and lead to contributions to flavor-changing neutral currents in the charged-lepton sector, which can be tested in future precision experiments. |
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| College: |
Faculty of Science and Engineering |
| Issue: |
9 |